Influence of capsular tension ring on posterior capsule opacification in myopic eyes
Influence of capsular tension ring on posterior capsule opacification in myopic eyes
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DOI：
10.4103/0301-4738.116469
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发表时间：
2014-03-01
影响因子：
3.1
通讯作者：
Kilic, Selim
中科院分区：
文献类型：
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作者：
Halili, Ismail;Mutlu, Fatih Mehmet;Kilic, Selim
目的：探讨高度近视患者白内障术后植入后囊张力环(CTR)预防后囊混浊的效果。材料和方法：在这项前瞻性的单一外科医生标准化手术程序的同眼对照试验中，34例高度近视患者接受了超声乳化手术。虽然一只眼接受了丙烯酸人工晶状体(IOL)和CTR，另一只眼只接受了IOL作为对照。术后至少2年，用标准化的数字回照图像记录撕囊重叠内的后囊混浊，并用POCOman软件系统对后囊混浊面积百分比进行评分(0%~100%)。测定各组PCO评分和掺钕铝石榴石(ND：YAG)晶状体切开术的发生率，以及PCO评分与CTR、年龄、超声乳化时间、屈光度、眼轴长度(AL)的关系。结果：平均手术至PCO测量时间，CTR组为43.4±11.2个月，对照组为43.1±11.6个月(P=0.91)。近视眼的后囊混浊评分明显低于对照组(分别为5.9±-4.3vs.22.3+/-12.2，P<；0.001)。PCO评分与术前屈光度(r=0.02；P=0.90)、人工晶状体植入术(r=0.03；P=0.80)、超声乳化时间(r=0.11；P=0.53)、患者年龄(r=0.23；P=0.55)无显著相关性。无1例患者行激光切开术，而对照组有6例(P=0.025)。结论：CTR植入术可有效降低高度近视眼后囊混浊和激光切开率。
Purpose: To determine the effect of a capsular tension ring (CTR) implantation in preventing posterior capsular opacification (PCO) after cataract surgery in patients with high myopia. Materials and Methods: In this prospective single-surgeon standardized-surgical-procedure fellow-eye comparison trial, 34 patients with high myopia had phacoemulsification surgery. Although one eye received an acrylic intraocular lens (IOL) and CTR, other eye received only an IOL as control. PCO, within the capsulorhexis overlap, was documented by standardized digital retroillumination images at least 2 years post-operatively, and the percentage area of PCO was scored (scale 0%-100%) using the POCOman software system. The PCO score and the incidence of neodymium-doped yttrium aluminum garnet (Nd: YAG) capsulotomy of groups, and correlations between PCO score and presence of CTR, age, phaco time, refraction, and axial length (AL) were determined. Results: The mean time interval from surgery to PCO measurement was 43.4 +/- 11.2 months for the eyes with a CTR and 43.1 +/- 11.6 months for the controls (P = 0.91). The PCO score of the eyes with a CTR was significantly lower than in the controls (5.9 +/- 4.3 vs. 22.3 +/- 12.2, respectively; P < 0.001). There were statistically insignificant correlations between PCO score and pre-operative refraction (r = 0.02; P = 0.90), AL (r = 0.03; P = 0.80), phaco time (r = 0.11; P = 0.53), and patient's age (r = 0.23; P = 0.55). No patient with a CTR had a Nd: YAG laser capsulotomy, but it was six in controls (P = 0.025). Conclusions: CTR implantation seems to be effective in reducing the PCO and Nd: YAG laser capsulotomy rates in high myopic eyes.